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I am working on a Java application which has a threading issue.
While using the applications for some time with Netbeans profiler attached, I can see several threads are created. Most of them finish in some .5 seconds. I could only find SwingWorkers used in the application.
Moreover, the majority of threads displayed by the profiler are normal threads and not SwingWorkers. Unless these threads were created by SwingWorker indirectly, I suspect, some library that the application uses is creating them.
Now I would like to remove this issue. But I could not find a way to determine the source of thread creation. If you can please suggest some other profiler/tool by means of which I can find the source(method) of thread creation.
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All Java programs have at least one thread, known as the main thread, which is created by the Java Virtual Machine (JVM) at the program's start, when the main() method is invoked. In Java, creating a thread is accomplished by implementing an interface and extending a class.
A thread can be created by implementing the Runnable interface and overriding the run() method. Then a Thread object can be created and the start() method called. The Main thread in Java is the one that begins executing when the program starts.
You can create threads by implementing the runnable interface and overriding the run() method. Then, you can create a thread object and call the start() method. Thread Class: The Thread class provides constructors and methods for creating and operating on threads.
If using Eclipse and its debugger is an option, you might try the following:
Alternatively
You could get the Yourkit Java profiler, which is also available for evaluation. It can show the threads created in an application including their stack traces (also after the thread finished). It does not show where the threads were created, but the stack trace of the threads might give you some clues about the involved libraries.
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JProfiler can do that. The thread monitor view shows the stack trace where a thread was created - if CPU recording was active at that time:
Disclaimer: My company develops JProfiler
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